Philips LX2600D Скачать руководство пользователя

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AMPLIFIER BOARD

TABLE OF CONTENTS

Class-D Amplifier circuit description ................................................. 8-1

Exploded view ................................................................................... 8-2

Class-D Amplifier Board- Circuit Diagram Part 1 .............................. 8-3

Class-D Amplifier Board- Circuit Diagram Part 2 .............................. 8-4

Class-D Amplifier Board- Top View Layout ....................................... 8-5

Class-D Amplifier Board- Bottom View Layout ................................. 8-6

Electrical parts list - Amplifier board ................................................. 8-7

8-1

6-channel class-D amplifier

Basic operation of a class-D amplifier

Basically, the output stage of a class-D amplifier outputs a continuous square wave swinging between positive and negative power supplies

with a fixed frequency (“clock” frequency) far beyond the audible range. The duty cycle of this square wave is modulated with the audio signal.

The output is followed by a low-pass filter which eliminates the clock frequency and allows only the audio signal going to the speaker. See

simplified drawing below.

Compared to a conventional power amplifier the benefits of the Class-D amplifier are:

• higher effiency

• lower power dissipation

• smaller heatsink required

• smaller mains transformer required

The main disadvantage of this concept is:

• The amplifier is operating with a high-frequency square wave at high amplitude and currents. This requires special precautions to prevent

excessive electromagnetic ratiation (EMC).

Содержание LX2600D

Страница 1: ...oard For info only 5 Front Board 6 Mono AV Board 7 Amplifier Board 8 Speaker Connector Board 9 Set Mechanical Exploded view 10 Parts list 11 Copyright 2003 Philips Consumer Electronics B V Eindhoven The Netherlands All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying or otherwise...

Страница 2: ...BOARDS 97 Progressive Scan Voltage Selector Aux In TV In Line Out x Composite CVBS Output x S Video Output x Component Pr Y Pb Outputs x SCART Output VERSION VARIATIONS Features Board in used LX2600D LX2610D 93 x x x x x ...

Страница 3: ...Hz IF frequency 450kHz 1kHz Aerial input Frame aerial 26 dB Quieting Sensitivity 4 0mV M Selectivity at S9 300kHz 20dB IF rejection 45dB Image rejection 28dB Distortion at RF 50mV m 80 5 AMPLIFIER Stereo mode DIN 25W 25W RMS 1 Frequency response 3dB 100Hz 20kHz Hum min volume 200nW Residue noise min volume 40nW Output sensitivity Line out 700mV 2dB at 47kοηµσ COMPACT DISC VCD DVD Video Decoding MP...

Страница 4: ...z e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50Ω Bandpass 250Hz 15kHz e g 7122 ...

Страница 5: ...97 30245 CD RW Printed Audio Test Disc 7104 099 96611 Dolby Pro logic Test Disc 4822 395 10216 ESD Equipment Anti static table mat large 1200x650x1 25mm 4822 466 10953 Anti static table mat small 600x650x1 25mm 4822 466 10958 Anti static wristband 4822 395 10223 Connector box 1MΩ 4822 320 11307 Extension cable to connect wristband to conn box 4822 320 11305 Connecting cable to connect table mat to...

Страница 6: ...n osservazione della più grande cauzione alla loro manipolazione Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell apparecchio tramite un braccialetto a resistenza Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale Pour votre sécurité ces documents doivent être utilisés par des spécia listes ...

Страница 7: ...osen 2 screws C pos 283 286 on the rear and 2 screws G see figure 3 and 4 to remove the Mono AV board 1 Loosen 4 screws E pos 280 and 1 catch C1 to remove the PSU board as per figure 4 2 Loosen 2 screws B pos 281 to remove the Speaker Connector board as per figure 3 Remove the Speaker Connector board try to prevent being block by Z as per figure 5 3 Loosen 4 screws F pos 279 to remove the Amplifie...

Страница 8: ...Figure 5 Figure 6 Figure 7 Figure 8 Speaker Connector Thick Insulation sheet or paper Thick Insulation sheet or paper Thick Insulation sheet or paper Thick Insulation sheet or paper Mono AV Board Front Keyboard Loader Mechanism ...

Страница 9: ... or 40 Max is reached Figure 2 Figure 1 Y N Y N N BII Button pressed BII Button pressed DISPLAY TEST Display shows Figure 1 Display shows Figure 2 Y 9 Button pressed To start service test program hold S SOURCE buttons depressed and press the STANDBY button Display shows the ROM version S Vyy S refers to Service Mode V refers to Version yy refers to Software version number of the uProcessor countin...

Страница 10: ... button on the Remote control 3 The TV screen will shows SERVO nnnnnnnn REG r LX3600D yymmdd Vxx where nnnnnnnn servo version number r region number yymmdd software date in year month day format xx version number SSS stroke version eg 97 or 93 Procedure to upgrade software 1 Power up the set and open tray in DVD mode 2 Place upgrade CD ROM onto tray and close 3 The set will response and display th...

Страница 11: ...4 1 4 1 SET BLOCK DIAGRAM TUNER TM 08 TDA8922 L R POWER AMP Lx2600D 97 Block Diagram_39331_HY_wk443 2 ...

Страница 12: ...E 1p EH 3139 110 34581 1 AD 4P 8P 1 24p 1 EH 10P 1 1 BD EH 5P 1 1 140mm 1 3139 110 38821 3139 110 35391 EH 11P 1 PH 9P 120mm 24 340mm 1 1 FFC BD 11p 3139 110 35910 3139 111 01751 9P 10 11 120mm 100mm FFC 0 5mm pitch 480mm 1 1 280mm 1 5 LX2600D 97_Set Wiring_39431_HY_wk443 2 ...

Страница 13: ... recommended for component repair on this board but to replace the board when it becomes defective Therefore no service parts list is published in this chapter The only service part available for replacement is PSU Board 220V 240V 3122 429 00191 ...

Страница 14: ...7 AMP HOLE 0206 3203 1K0 BC847B 7202 2112 100u 2154 10n PDZ 13B 2K2 6153 3204 2K2 3153 3154 2K2 7153 BC547B 2153 22u TCET1102 7119 3177 2K7 2105 470n PDZ 13B 6102 PDZ 13B 6101 2117 33n 6128 PG106R 470n 2167 0100 MECHPART MECHPART 0200 2164 10n 10n 2163 6161 BAS316 6160 100R 3166 BAS316 3165 3164 10K 33K 100R 3102 10u 5201 1n0 2114 5200 10u 2160 470n 2140 1n 2203 3m3 STPS8H100FP 6201 3m3 2202 STPS8...

Страница 15: ...51 10K 2222 22n 22n 2282 5 7 8 9 2133 22n 5190 CT282D4 10 11 12 13 14 15 16 17 18 2 F241 F281 F240 F280 F215 F216 F221 F251 F220 F250 3257 56K 10K 3256 BC847B 7255 10K 3242 3254 2K2 7242 BC857B 7240 BC337 40 3282 8K2 BC857B 7282 BC337 40 7280 7250 SI2302DS 5280 10u 6u8 5250 10u 5220 6280 PG106R 6240 1N4006 PG106R 6210 100u 2280 22u 2240 220u 2210 1m 2250 2136 100p 3137 1K5 F126 F125 1R 3123 F294 F...

Страница 16: ...P 6 1 0 P 7 1 1 P 8 1 2 P 9 8 P 5 1 4 P 11 1 5 P 12 1 6 P 13 1 7 P 14 1 3 P 10 1 8 P 15 1 9 N C 2 0 N C 2 1 N C 2 2 N C 2 3 7 G 2 4 6 G 2 6 4 G 2 7 3 G 2 8 2 G 2 9 1 G 2 5 5 G 3 0 N P 3 1 F 2 3 2 F 2 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 6G a j p h k b f m g c e r n d s 7G a j p h k b f m g c e r n d s 5G a j p h k b f m g c e r n d col s 4G a j p h k b f m g c e r n d s 3G a j p h k ...

Страница 17: ...STB_SW 1 2 1 2 A B A B 1201 A1 1202 B2 2201 B2 3201 A2 3202 A2 3203 B2 6201 A2 6202 B2 7201 A2 POWER_ON BZX79 C5V6 6202 FE BT VK N 1 2 3 4 D 5VDSTBY D D 1201 D 3203 10K 2201 10n D STANDBY 1202 6201 3201 1K0 4K7 D BC847B 7201 3202 8239 210 9630 pt3 dd wk0325 8239 210 9630 pt3 dd wk0325 ...

Страница 18: ... 3118 330R 3125 10K 25V 47u 2100 1K0 3104 2107 100n 22p 2113 7 8 6112 FE BT VK N 1101 1 2 3 4 5 6 42 36 37 7102 BC817 25 34 38 40 41 44 4 6 13 16 19 20 23 28 18 27 8 3 43 5 12 17 22 26 29 35 39 1 33 15 25 2 30 31 32 21 9 14 24 10 11 7 7100 2121 1u0 5K6 3109 1n 2106 50V 100u 2114 RT 01T 1112 1 A 3 B 2 C 4 5 4102 EVEMC 1111 1 330R 3117 330R 3119 1K0 3105 4K7 3121 3108 5K6 GND_M 1106 1107 2112 100u 5...

Страница 19: ...versions For components used in a specific version see schematic and respective parts list 8239 210 9625 pt3 dd wk0325 This assemby drawing shows a summary of all possible versions For components used in a specific version see schematic and respective parts list 8239 210 9625 pt3 dd wk0325 PART A PART B ...

Страница 20: ...6 5 6 5 FRONT DISPLAYPART CHIPLAYOUT PARTA This assemby drawing shows a summary of all possible versions For components used i PART A ...

Страница 21: ...6 6 6 6 FRONT DISPLAYPART CHIPLAYOUT PART B ts used in a specific version see schematic and respective parts list 8239 210 9625 pt3 dd wk0325 PART B ...

Страница 22: ...ESISTORS 3100 4822 052 10478 4R70 5 0 33W DIODES 6105 4822 130 30621 1N4148 6106 4822 130 30621 1N4148 6108 4822 130 34173 BZX79 C5V6 6109 4822 130 34173 BZX79 C5V6 6110 4822 130 34173 BZX79 C5V6 6112 4822 130 34167 BZX79 B6V2 6201 9322 179 76676 LED VS LTL 816EELC 6202 4822 130 34173 BZX79 C5V6 TRANSISTORS INTEGRATED CIRCUITS 7100 9322 186 03671 UPD16312GB 3B4 7101 9322 185 95667 IR RECEIVER TSOP...

Страница 23: ...T MCLK VQ GND TST AINR S H DAC Comparator LP Filter S H LP Filter DAC Comparator AINL VA VL RST Digital Decimation Filter HPF Digital Decimation Filter HPF SDATA LRCK SCLK Serial Port 5 1 16 14 13 10 6 15 2 11 12 8 9 4 7 3 Signal Name 20 A0 A19 W DQ0 DQ14 VCC M29W160ET M29W160EB E VSS 15 G RP DQ15A 1 RB BYTE A0 A19 Address Inputs DQ0 DQ7 Data Inputs Outputs DQ8 DQ14 Data Inputs Outputs DQ15A 1 Dat...

Страница 24: ... GND GND_A 100n 2603 2802 100n BAS316 6622 7616 BC857B 6603 BAS316 3K3 3602 100K 3604 BAS316 6605 GND T401 GND 2606 100n GND 6604 S1D LD1117DT33 7601 2605 100n 6601 BAS316 T402 2786 220u 10V BAS316 6620 10K 3533 BAS316 6615 2782 10u 220u 2784 BC847B 7502 16V GND 7617 BC857B 220u 10V GND 2513 100n 2781 3611 10K CD 5 3 GND 2 INP 4 1 OUTP 3610 1K0 NCP303LSN30 7501 16V 220u 2785 1u 2601 2783 220u 16V ...

Страница 25: ...V 100u 2613 GND 3633 1R0 TP3 TP13 GND TP1 3630 10R 10K 3735 10K 3647 100u 2648 3634 1R0 25V 2644 150p 3625 27K 2616 27p T407 GND TP58 2642 15n TP59 82p 2619 2803 GND GND 120p 2639 1u0 1u0 2640 100K 7632 BC847B 95 DVDRFIN 96 DVDRFIP 97 MDOB0 MOVALB 98 99 MOSTRTB 3733 88 RFGC 89 OSP 9 TM1 90 OSN 91 CDD 92 CDC 93 CDB 94 CDA 80 MOP 81 MON 82 AGNDX8 AGNDX9 83 84 CEQN 85 CEQP 86 RFGCI 87 RFGCU 73 AGNDM ...

Страница 26: ...DVDD3 66 UP1_7 67 UP3_0 68 UP3_1 69 55 APLLVDD3 56 ALE 57 IOOE 58 IOWR 59 IOCS LPFIP 6 60 DVSS 61 UP1_2 62 48 IOA7 49 A16 LPFON 5 50 A17 51 IOA18 52 IOA19 53 IOA20 54 APLLVSS 40 IOA0 41 IOA1 42 DVDD2 43 IOA2 44 IOA3 45 IOA4 46 IOA5 47 IOA6 33 AD5 34 AD4 35 DVDD3 36 AD3 37 AD2 38 AD1 39 AD0 LPION 4 26 HIGHA4 27 HIGHA5 28 DVSS 29 HIGHA6 LPIOP 3 30 HIGHA7 31 AD7 32 AD6 213 RFDTSLVP 214 RFDTSLVN RFIN ...

Страница 27: ...3680 3729 4K7 3808 33R 100n 2764 33R 3809 100n 2703 GND 33R GND 3723 2715 100n GND_A GND GND_A GND 100n 2712 2711 100n 100n 2710 5 6 470R 5623 7 8 33R 3676 3 16V 47u 3676 4 33R 2807 2776 100n 2713 100n 16V 220u 2793 2799 100n 16 TP54 3 9 43 49 28 41 54 6 12 46 52 42 44 39 15 36 40 18 1 14 27 45 47 48 50 51 53 5 7 8 10 11 13 33 34 20 21 17 37 38 19 2 4 23 24 22 35 25 26 29 30 31 32 GND 7609 MT48LC4...

Страница 28: ...PDZ15B 6626 100p 2514 680p 2825 2826 100p 680p 150R 3511 2516 150R 3524 GND 7653 BC847B TP50 GND 6 3V 470u 2810 GND 5615 1 8UH 2748 10K GND 100p 3817 GND 10p 2746 150R 3520 TP52 TP47 220n 2510 2722 220p GND 220R 3825 7654 BC847B 470R GND 3820 BZX384 C15 6613 470R 3819 BZX384 C15 6627 BC847B 220p 2725 3796 7638 3813 4K7 10K 3818 1K0 GND 6612 BZX384 C15 18K 3816 TP48 3514 150R 100p 2517 220p 2817 GN...

Страница 29: ...5K 3154 1u 2179 2153 330p 82p 2152 82p 3164 15K 2162 2163 330p 12VA_B 470p 2164 2148 2160 330p 470p 22p 2135 2161 1u 2190 680p 3173 1u 2188 2134 22p 12K 1K8 GND_A 1K8 3126 3136 2182 100n 2196 100n 3151 10K 330p 2150 2177 470p 2151 680p 680p 2157 22p 2156 2114 47u GND 10K 3108 3V3_D GND 1u 2128 1u 2136 2106 47u 3V3_DAC GND A_HP 4108 4K7 3113 GND BC857B 7105 100n AVCC_A GND GND 2109 GND 100n 2194 31...

Страница 30: ...242 12p G Y 47K 3268 10K 3257 4215 47K 3225 GND_A 1u 2234 GND_A GND_A 4K7 470R 3266 3273 4K7 3255 D5V 22K 3272 5K6 3254 D5V 2233 22u 2270 68p GND_A 68p 2220 33K 3265 3226 3215 33K I2S_IN 470K 33R 3245 3252 5K6 T211 3244 33R T206 25V 47u 2224 6251 BZX384 C3V9 T226 120R 3227 2216 68p 3262 470K 220p GND T234 2293 6292 PDZ 15B 220p 2292 GND 10K 3232 1K 3251 GND_A 4220 GND_A GND_A 7205 BC847B 2230 22n ...

Страница 31: ...313 100K GND GND_C A_HP 2315 100p 100p 2364 3318 2K2 3345 T310 47K 3365 GND 100K 100K 3315 2382 GND 4310 1u 2385 4u7 T320 4317 T313 T325 T314 3336 1K0 T336 BC847B 7313 GND_S 100p 2311 4 1K0 3378 7323B 74HCU04D 3 7 14 7323A 74HCU04D 1 7 14 2 2318 100R 3316 3373 270R GND 3372 1K0 3371 100R T331 T318 Mute_SUB T315 3348 1K 1308 FE BT VK N 1 2 3 4 5 6 7 8 3347 1K GND 220p 2394 7310 BC847B 56p 2389 T324...

Страница 32: ...7 10 7 10 PCB 3139 113 3522 pt3 TOP VIEW Use by LX2600D 97 LX2600D_AV Mono_31391133522 pt 3_HY_wk433 2 ...

Страница 33: ...7 11 7 11 PCB 31311352 pt3 TOP VIEW MAPPING ...

Страница 34: ...7 12 7 12 PCB 3139 113 3522 pt3 BOTTOM VIEW Use by LX2600D 97 LX2600D_3139 113 3522 pt3_HYwk0442 ...

Страница 35: ...7 13 7 13 PCB 3139 113 3522 pt3 BOTTOM VIEW MAPPING ...

Страница 36: ...1880 Fixed Ind 5 1210 5621 3198 018 41880 Fixed Ind 5 1210 5623 4822 051 30471 470R 5 0 062W 5624 4822 051 30471 470R 5 0 062W 5625 4822 157 11499 Fixed Ind 60R 100MHz 0603 5626 4822 157 11499 Fixed Ind 60R 100MHz 0603 5627 4822 157 11499 Fixed Ind 60R 100MHz 0603 5701 2422 543 01393 X tal Resonator 27MHz DIODES 6250 4822 130 11551 BZX384 C10 6251 4822 130 11564 BZX384 C3V9 6310 4822 130 11397 BAS...

Страница 37: ...ive power supplies with a fixed frequency clock frequency far beyond the audible range The duty cycle of this square wave is modulated with the audio signal The output is followed by a low pass filter which eliminates the clock frequency and allows only the audio signal going to the speaker See simplified drawing below Compared to a conventional power amplifier the benefits of the Class D amplifie...

Страница 38: ...8 2 8 2 MECHANICAL EXPLODED VIEW 0010 0006 TECHNICAL REMARKS ...

Страница 39: ...6 6714 BAS316 47K 3722 10K 3716 3701 O1 1 2 O2 13 12 SD1 6 SD2 8 14 7 47K 7607 HEF4013BT CD1 4 CD2 10 CP1 3 CP2 11 5 D1 D2 9 1n0 2413 FE BT VK N 1 10 2 3 4 5 6 7 8 9 1303 3406 5K6 2 3 4 5 6 7 8 9 10FE ST VK N 1301 1 10 10 2 3 4 5 6 7 8 9 10FE ST VK N 1305 1 47K 3718 2422 1n0 2421 1n0 2407 35V 470u 1 10 2 3 4 5 6 7 8 9 5K6 1302 FE BT VK N 1n0 3419 2410 2409 1n0 CLASS D AMPLIFIER PART 1 2418 1n0 241...

Страница 40: ...15u 5102 AMPLIFIER POWER TDA8920TH 10R 3109 3354 3K9 3352 3K9 3K9 3353 3K9 3351 3254 3K9 3101 5R6 5R6 3100 2227 100n 2134 220n 2304 100n 3252 3K9 3K9 3253 3K9 3251 3154 3K9 3152 3K9 3K9 3153 3K9 3151 2115 560p 2236 330p 23 12 1 24 17 20 7 16 21 13 11 2 18 10 3 14 TDA8920TH POWER AMPLIFIER 7200 15 22 19 8 9 5 4 6 Φ 2135 68p 4137 330p 2136 2331 330p 2204 100n 100n 2205 3203 22R 3206 47K 4232 4233 21...

Страница 41: ... D AMPLIFIER BOARD TOP VIEW LAYOUT This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139_113_3526 pt3 HY wk0444 ...

Страница 42: ... AMPLIFIER BOARD BOTTOM VIEW LAYOUT This assembly drawing shows a summary of all possible versions For components used in a specific version see schematic diagram and respective parts list 3139_113_3526 pt3 HY wk0444 ...

Страница 43: ...00 15619 100V 560pF 10 2124 2222 601 55649 100V 100nF 10 2125 4822 121 51252 50V 479nF 10 2126 2238 600 15619 100V 560pF 10 COIL FILTERS 5102 2422 536 00733 Ind Fixed 22uF 20 5103 2422 536 00733 Ind Fixed 22uF 20 5400 4822 157 11411 BEAD 100MHZ 80R 5401 4822 157 11411 BEAD 100MHZ 80R DIODES 6600 3198 020 55680 BZX384 C5V6 6713 4822 130 11397 BAS316 6714 4822 130 11397 BAS316 6715 4822 130 11397 BA...

Страница 44: ...cal parts list 9 1 Circuit Diagram 9 2 Component and Chip layouts 9 3 9 1 9 1 ELECTRICAL PARTS LIST SPEAKER CONNECTOR BOARD MISCELLANEOUS 1712 4822 267 31176 SOCKET CLICK H 4P F Note Only the parts mentioned in this list are normal service spare parts ...

Страница 45: ...002 D3 1712 1 B4 1712 2 C4 1712 3 D4 1712 4 C4 2202 C2 2203 D2 T700 C2 T701 C2 T703 T700 T701 2202 T702 8 9 GND 10n 3 DIPMATE 0013 1 2 3 4 5 6 7 4 YKD21 0026B 1712 3 BLACK2 2 YKD21 0026B 1712 4 RED2 1712 2 BLACK1 YKD21 0026B GND RT 01T 1 0B 1002 1 1 2203 10n YKD21 0026B RED1 1712 1 ...

Страница 46: ...9 3 9 3 COMPONENT LAYOUT CHIP LAYOUT 3139_113_3595 1 circuit1 _HY_wk0442 3139_113_3595 1 circuit1 _HY_wk0442 ...

Страница 47: ...MAIN ENCASING EXPLODED VIEW 10 1 10 1 ...

Страница 48: ...MAIN ENCASING EXPLODED VIEW 10 2 10 2 ...

Страница 49: ... 0015 2422 015 16901 SADDLE MINI CLAMP TYPE B 11 8 FINAL EQUIPMENT ASSEMBLY PARTS LIST 0351 2422 076 00546 CABLE FM AERIAL 0352 2422 549 45813 ANTENNA AM LOOP 0352 2422 549 45386 ANTENNA AM LOOP 0353 3139 238 04751 REMOTE CONTROL 0356 2422 070 98231 MAIN CORD 97 0356 4822 321 11462 MAINS CORD 20 21 JST PLUG 0364 3103 308 92610 CABLE AUDIO 0365 4822 263 21206 P50 ADAPTOR 0356 2422 070 98232 MAIN CO...

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